| Commit message (Collapse) | Author | Age | Files | Lines |
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- Add the wm window-manager facility per ADR 0004: overlapping
pixel-surface windows, damage-rectangle compositing, WM-drawn title
bar, focus/minimize/close, and F1-F4 keybindings
- Add gop shadow compositing primitives and vt::repaint_region so the
console stays layer 0 beneath windows
- Route mouse (absolute coords, press/release edges) and keyboard
(focus-aware input pump) to the focused window
- Add the rspaint drawing-program crate (pen, 8 colors, clear) and shell
draw/windows/restore commands
- Extend TaskMsg with AppMouse/Focus/Close and document the design in
CONTEXT.md + ADR 0004
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- ADR 0003: preemptive round-robin kernel tasks on the 100 Hz tick,
shared address space, guard pages + page-fault handler, graceful task
panics, safe-builtin spawn surface, only-shell-touches-I/O invariant
- CONTEXT.md: new 'Task' glossary entry; 'Paging strategy' now says
guard pages exist on task stacks
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Implement the shell experience redesign: one canonical grammar for every
command — 'cmd args [USE src] [TIL marker] [filters...] [output kw dst]'.
- Keyword redirection (uppercase-only, aliases valid, fully reserved):
WRITING/WRITE overwrite, TO append, USE/USING input source,
TIL/UNTIL heredoc/terminator (exact full-line marker). > >> < << are
removed; '>' is plain text.
- Post-filter stages applied left to right over a line stream, each
repeatable: -h N (head kills the upstream), -t N (tail holds a
rolling window, flushes at EOF/^C), -g PAT (smart-case literal
substring), -p (screenful pager, terminal only). A file sink
replaces the screen; -p is a no-op with one.
- C-style quoting: "..." groups and literalizes, \x escapes one char;
quoted/escaped text is never an operator, never split.
- Input consumers: cat/hexdump, path-less only (stdin until ^D,
USE f, TIL m heredoc, USE f TIL m truncation). Other commands
reject input keywords; paths + input keyword is a syntax error.
- ^D is EOF everywhere and never powers off; poweroff/exit are the
only shutdown verbs.
- help rewritten; test-disk.sh and sendkeys.py use the keyword syntax.
Verified in QEMU: 26 grammar checks on fresh and reused disks, disk
round trip, pager pacing, -h stopping /dev/mem at N lines, ^C flushing
a -t window. Two bugs found during verification and fixed:
1. WRITING over an existing file wrote after stale NUL padding —
fs::size() is stale after set_len(0); the sink writes at offset 0
after truncation.
2. USE f TIL m leaked the post-marker remainder — the final
partial-line emit ran after the marker break; guarded with a
stopped flag.
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- Bare-metal x86_64 UEFI kernel (PE32+, no libc)
- GOP framebuffer + 8x16 bitmap font
- PS/2 keyboard (polling, scancode set 1)
- UART 16550 serial driver (COM1, 115200 8N1)
- Bump allocator as #[global_allocator] (alloc::String, Vec, format!)
- UEFI memory map capture (static buffer, ADR 0001)
- Shell with 7 commands (help, echo, clear, hello, info, mem, halt)
- Dual output: GOP framebuffer + serial console
- Makefile: run, run-gui, debug, release, image targets
- tools/: qemu.sh, boot-image.sh, debug-kernel.py
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